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Public Health England
Vitamin D recommendations
Vit D and COVID
Evidence that Vitamin D Supplementation Could Reduce Risk of Influenza and COVID-19 Infections and Deaths.
Prevalence and correlates of vitamin D deficiency in US adults
About 42% of the US population is vitamin D deficient. However, this rate rises to 82% in black people and 70% in Hispanics
Vit D deficiency in Ireland
Vitamin D is essential for bone and muscle health
Arizona University
